That’s certainly a questionable change. I’d understand if the film was up in your face with some steamy, long-drawn make out scene between two random characters. That would feel extremely forced and cringe. But it’s a blink and you’ll miss it moment, really. I think JJ actually did a good job here making it feel organic.
Besides, why should it necessarily be interpreted in a sexual way? How do we know that in a galaxy as large and diverse as Star Wars that it isn’t their culture’s way of celebrating with each other? Yes, the novelization states that they are in a relationship, but the film itself never actually makes that clear.
I would of preferred to have them hug instead of kiss. That’s why I removed it.